Dynamic element matching

1. A system comprising: an input shuffling circuit comprising a data input, a data output, a mode select input, and a shuffle control input wherein the input shuffling circuit is operable to: receive, via the data input, an N-bit binary value, wherein N is an integer; and route each of the N bits of the N-bit binary value to one or more of M bits of the data output to generate an M-bit value, wherein M=2 N , and the route is based on a control value applied to the mode select input; and digital-to-analog conversion circuitry operable to convert the M-bit value to a corresponding analog voltage and/or current.

2. The system of claim 1 , wherein M different values applied to the shuffle control input result in M different routings of the N bits of the binary value.

3. The system of claim 1 , wherein the input shuffling circuit comprises a plurality of multiplexers.

4. The system of claim 1 , wherein the input shuffling circuit comprises a two-to-two multiplexer, a four-to-four multiplexer, and an eight-to-eight multiplexer.

5. The system of claim 4 , wherein: two outputs of the two-to-two multiplexer are connected to two of four data inputs of the four-to-four multiplexer; and four outputs of the four-to-four multiplexer are connected to four of eight data inputs of the eight-to-eight multiplexer.

6. The system of claim 5 , wherein: one bit of the N-bit value is connected to one of two data inputs of the two-to-two multiplexer; one bit of the N-bit value is connected to two of four data inputs of the four-to-four multiplexer; and one bit of the N-bit value is connected to four of eight data inputs of the eight-to-eight multiplexer.

7. The system of claim 1 , wherein the route is based on a value applied to the shuffle select input.

8. The system of claim 1 , wherein: a first value applied to the mode select input configures the input shuffling circuit into a dynamic element matching mode; and a second value applied to the mode select input configures the input shuffling circuit into a binary-to-thermometer conversion mode.

9. The system of claim 1 , wherein: a first value applied to the mode select input configures the input shuffling circuit into a dynamic element matching mode; and a second value applied to the mode select input configures the input shuffling circuit into a binary-to-thermometer conversion mode.

10. A method comprising: in a system comprising digital-to-analog conversion circuitry and an input shuffling circuit comprising a data input, a data output, mode select input, and a shuffle control input: receiving, by the input shuffling circuit via the data input, an N-bit binary value, where N is an integer; generating, by the input shuffling circuit, an M-bit value by routing each of the N bits of the N-bit binary value to one or more of M bits of the data output, where M=2 N , and the routing is based on a value applied to the mode select input; and converting, by the digital-to-analog conversion circuitry, the M-bit value to a corresponding analog voltage and/or current.

11. The method of claim 10 , wherein M different values applied to the shuffle control input result in M different routings of the N bits of the binary value.

12. The method of claim 10 , wherein the input shuffling circuit comprises a plurality of multiplexers.

13. The method of claim 10 , wherein the input shuffling circuit comprises a two-to-two multiplexer, a four-to-four multiplexer, and an eight-to-eight multiplexer.

14. The method of claim 13 , wherein: two outputs of the two-to-two multiplexer are connected to two of four data inputs of the four-to-four multiplexer; and four outputs of the four-to-four multiplexer are connected to four of eight data inputs of the eight-to-eight multiplexer.

15. The method of claim 14 , wherein: one bit of the N-bit value is connected to one of two data inputs of the two-to-two multiplexer; one bit of the N-bit value is connected to two of four data inputs of the four-to-four multiplexer; and one bit of the N-bit value is connected to four of eight data inputs of the eight-to-eight multiplexer.

16. The method of claim 10 , wherein the route is based on a value applied to the shuffle control input.

17. The method of claim 10 , comprising: selecting a dynamic element matching mode when a first value is applied to the mode select input; and selecting a binary-to-thermometer conversion mode when a second value is applied to the mode select input.

18. The method of claim 10 , comprising: configuring the input shuffling circuit into a dynamic element matching mode when a first value is applied to the mode select input; and configuring the input shuffling circuit into a binary-to-thermometer conversion mode when a second value is applied to the mode select input.

19. The method of claim 10 , comprising varying, over time, a value applied to the shuffle control input.

20. The method of claim 19 , wherein the value applied to the shuffle control input is a pseudo-random N-bit value that varies at an input rate of the N-bit binary value.